http://arstechnica.com/business/2016/08/google-to-punish-sites-that-use-intrusive-pop-over-ads/

Essentially, Google wants search results to favor sites that have the best information and the least annoying advertisements that cover up that information. "While the underlying content is present on the page and available to be indexed by Google," the blog post says, "content may be visually obscured by an interstitial. This can frustrate users because they are unable to easily access the content that they were expecting when they tapped on the search result."

See the URL above for full story. Thought this was relevant to this site as well.

Google also prioritizes sites that have mobile versions over the ones that don't. So that along with this = doomz

I don't know how I feel about Google using their market position to tell people how to run their websites. At least this time, the demand makes sense. 

ioi: " Oh, damn it."

Not ideal, I think, but like you said, makes sense in this case. Makes sense from Google's point of view too, because its aim is to provide good search results for its users, and mobile users are probably going to value mobile-friendly sites more. This is essentially ranking mobile-friendly sites higher - or, more generally, user-friendly sites.

It's only half the story, though.
Of course, Google (and other companies) push sites that people like to use. Telling the world about mobile and intrusive ads is sadly just PR. In the end, Google will also push sites that have working ads (most are from Google anyways) which in result make money for Google, doesn't matter which kind of ad it is at the end of the day. Yes, they want the ads to be less intrusive and mobile focuses, because that is what works best currently.
If you want a Google-friendly site, simply do whatever pleases them and their bank account ;)

(btw Google also wants you to have zero flaws in your source code so the site works perfectly well on all devices but at the same time Google ads and analytics tools have (had) their own flaws and were built with improper code that would cause browsers to hiccup)

While I'm sure they are clever enough to know, a mobile version doesn't necessarily mean they aren't responsive. More people are moving to a responsive design based on browser width (which would actually solve a lot of issue this website has) instead of a dedicated mobile site.

A mobile site is coming.

There goes VGChartz.

*thinks about porn* Oh God we are on the verge of the biggest crisis in the Internet History !